Technical Metal Corporation have 20 years of experiance in manufacturing & exporting of A2-70 Stainless Steel Hex Bolts in india & global market. we supplied A2-70 Stainless Steel Hex Bolts to 300 organization to 30 countries. Technical Metal Corporation is the industry leader in offering what is undoubtedly the most comprehensive A2-70 Stainless Steel Hex Bolts range and stock in all sizes in metric, imperial and in all grades.A bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to, and often confused with, screws.The distinction between a bolt and a screw is unclear and commonly misunderstood. There are several practical differences, but most have some degree of overlap between bolts and screws.

Orders at Technical Metal Corporation are guaranteed fast delivery of the A2-70 Stainless Steel Hex Bolts in the country. The main reason being we have an excellent warehousing and storage facilities for both finished and semi finished goods.They are made ready as per the urgent requirements of the customers. The A2-70 Stainless Steel Hex Bolts are manufactured to sustain very high pressure and product warranty.In 2016 we have stocked more than 188 tons of A2-70 Stainless Steel Hex Bolts in all sizes, to cater to immediate delivery and urgent needs of the clients. For small requirements we can dispatch the A2-70 Stainless Steel Hex Bolts immediately against the purchase order.

Our A2-70 Stainless Steel Hex Bolts plant is equipped with various testing facilities like Tensile Testing Machine also known as tension testing. We also conduct other tests like Hardness Test, IGC Test, Positive Material Identification Test to ensure that all the product going out of our manufacturing plant are the best in terms of quality.

Comparison: US and ISO (DIN) Stainless Steels

Tensile Load

A2 and A4 as compared to 304 and 316

Percent difference from US – Stainless Steel

up to M20

44% higher

M22 and over

6% lower

Give us a call today to get all the information, +91-98210 71212, If you're looking to buy or sell Fasteners (Bolts, Nuts, Washers, Stud Bolt, Screws), we can help., call to our Distributor in India or mail us to sales@technicalmetalcorp.com for instant free quote of Fasteners (Bolts, Nuts, Washers, Stud Bolt, Screws).

-> When selecting the correct screw diameter it should be ensured that the total load on the screw does not exceed 90% of the standardized 0.2% yield stress. Care should be taken to ensure correct initial tensioning, with a torque wrench wherever possible.

-> Experience has shown that a utilization of 70% of the total load is reasonable average for the initial stressing force to allow additional forces in service to be taken up.

**The table above is only intended as an aid for quick comparison**

ASTM Specifications for A2-70 Stainless Steel Bolts

ASTM A193 :Alloy steel and stainless steel bolting materials for high temperature or high pressure service.

A2-70 Stainless Steel Hex Bolts Available in Following Surface Coating

Zinc Nickel Coated A2-70 Stainless Steel Hex Bolts

Aluminium Coated A2-70 Stainless Steel Hex Bolts

Teflon Coated A2-70 Stainless Steel Hex Bolts

Xylan Coated A2-70 Stainless Steel Hex Bolts

Zinc Coated A2-70 Stainless Steel Hex Bolts

Hot Dipped Galvanized A2-70 Stainless Steel Hex Bolts

Phosphate Coated A2-70 Stainless Steel Hex Bolts

Cadmium Coated A2-70 Stainless Steel Hex Bolts

Electro Zinc plated A2-70 Stainless Steel Hex Bolts

Electro Cadmium Plated A2-70 Stainless Steel Hex Bolts

Silver Coated A2-70 Stainless Steel Hex Bolts

Zinc/Nickel by Electrodeposition A2-70 Stainless Steel Hex Bolts

Electroless Nickel Plated A2-70 Stainless Steel Hex Bolts

Geomet A2-70 Stainless Steel Hex Bolts

Dacromet A2-70 Stainless Steel Hex Bolts

Ceramic Filled PTFE Coated A2-70 Stainless Steel Hex Bolts

We have Ready Stock All Different Types Of Stainless Steel Fasteners

Stainless Steel Fasteners

Stainless Steel bolts

Stainless Steel Nuts

Stainless Steel Screw

Stainless Steel Washer

Stainless Steel Automotive Fasteners

Stainless Steel Marine Fasteners

Metric Stainless Steel Fasteners

304 Stainless Steel Nuts

304 Stainless Steel Bolts

304 Stainless Steel Screw

304 Stainless Steel Washer

304L Stainless Steel Nuts

304L Stainless Steel Bolts

304L Stainless Steel Screw

304L Stainless Steel Washer

904L Stainless Steel Nuts

904L Stainless Steel Bolts

904L Stainless Steel Screw

904L Stainless Steel Washer

17-4PH Stainless Steel Bolts

17-4PH Stainless Steel Washer

17-4PH Stainless Steel Nuts

304H Stainless Steel Nuts

304H Stainless Steel Bolts

304H Stainless Steel Screw

304H Stainless Steel Washer

310 Stainless Steel Nuts

310 Stainless Steel Bolts

310 Stainless Steel Screw

310 Stainless Steel Washer

316 Stainless Steel Nuts

316 Stainless Steel Bolts

316 Stainless Steel Washer

316H Stainless Steel Nuts

316H Stainless Steel Bolts

316H Stainless Steel Screw

316H Stainless Steel Washer

316L Stainless Steel Nuts

316L Stainless Steel Bolts

316L Stainless Steel Screw

316L Stainless Steel Washer

17-4PH Stainless Steel Screw

317 Stainless Steel Nuts

317 Stainless Steel Bolts

317 Stainless Steel Screw

317 Stainless Steel Washer

317L Stainless Steel Nuts

317L Stainless Steel Bolts

317L Stainless Steel Screw

317L Stainless Steel Washer

321 Stainless Steel Nuts

321 Stainless Steel Bolts

321 Stainless Steel Screw

321 Stainless Steel Washer

347 Stainless Steel Nuts

347 Stainless Steel Bolts

347 Stainless Steel Screw

347 Stainless Steel Washer

410 Stainless Steel Nuts

410 Stainless Steel Bolts

410 Stainless Steel Screw

410 Stainless Steel Washer

A2-70 Stainless Steel Hex Bolts Useful Information

Stainless Steel Bolts are often used to make a bolted joint. This is a combination of the nut applying an axial clamping force and also the shank of the bolt acting as a dowel, pinning the joint against sideways shear forces. For this reason, many bolts have a plain unthreaded shank as this makes for a better, stronger dowel. The presence of the unthreaded shank has often been given as characteristic of bolts vs. screws, but this is incidental to its use, rather than defining.

DIN ES ISO 3506-1: 1997 specifies the mechanical properties of bolts, screws and nuts made of austenitic (amongst others) stainless steels, when tested over an ambient temperature range of 15o C to 25o C. Technical Metal Corporation, through its Manufacturing, trading and Export division High Tensile Stainless, supplies a range of material that enable fastener manufacturers and others to produce products that meet or exceed the properties required in the above standard. Material to meet the properties of A2-70 is one element of our product range.

The designation A4-80 derives from â€œAâ€ meaning the material is a cold worked austenitic stainless, divided into 5 grades (1-5) according to material characteristics (see Annex B of DIN ES ISO 3506-1: 1997 for full description of each grade). The â€œ70â€ denotes the minimum tensile strength to be met by the material (actually the bolt, screw or nut after manufacture).

Therefore, A2-70 is an austenitic, acid proof stainless grade (usually 304 material - 304 or 304L) which has been cold worked to provide a minimum tensile strength of 700 N/mm2 (MPa).

Solution Treatment (Annealing) - Heat to 1010-1120Â°C and cool rapidly. These grades cannot be hardened by thermal treatment..
Our company is equipped with modern machineries and is organized in four divisions viz WIRE PREPARATION PLANT, NUT MANUFACTURING DIVISION, BOLTS/SCREWS & MACHINE SCREWS MANUFACTURING DIVISION, SELF TAPPING & WOOD SCREWS MANUFACTURING DIVISION. The Production facilities always pulsate with the activities of more than 110 employees turning out a wide range of fasteners.
Our divisions are equipped with modem facilities for Development, Q.A and Manufacturing of our products. These are manned by qualified personal having technical expertise and all are committed to maintain best quality of our products. Technical Metal Corporation is proud of its diverse range of fasteners like. Nuts, Bolts/Screws, Socket Products, Machine Screws, Washers, Self Tapping Screws, Wood Screws, Studs, Threaded Rods etc.

The selection of steel grades within a group is the prerogative of the manufacturer, unless the purchaser has specified particular steels to ISO or national standards.

Different grades of steel may be used as long as all physical and mechanical properties and the corresponding corrosion resistance of the finished product are achieved. Only when all these conditions are fulfilled may finished articles be marked in accordance with DIN 267 Part 11.

Four Properties of A2-70 Stainless Steel Hex Bolts

1. High temperature resistance. For high hardness, the Bolts has strong oxidation resistance. It cannot work under high temperature and cannot be interfered by high temperature. If the Bolts is passivated after being made out, the temperature resistance will be better.

2. Physical properties. A2-70 Stainless Steel Hex Bolts has higher specific resistance. The specific resistance of stainless steel is higher than that of carbon steel by five times. Standard parts have an expansion factor. Through experiment, if the temperature is higher, the expansion factor of stainless steel Bolts will be improved definitely.

3. Stress capacity. A2-70 Stainless Steel Hex Bolts can endure moderate stress. Although it cannot be compared favorably with high strength bolt, the fastener can still meet the common requirements.

4. Mechanical properties. High rust resistance and corrosion resistance have close relationship with the features of stainless steel. For standard parts developing constantly, mechanical properties of A2-70 Stainless Steel Hex Bolts will be enhanced further.

What Client Say ?

We had an Enquiry for SS 310S CSK NIB Bolt with very urgent Delivery.Technical Metal Corporation Came up with delivering a free sample for the same.Later Order was Delivered with quality on time.

- Mr. Arman Aviarman, (Indonesia)

Was so surprised to know, Technical Metal Corporation keeps Hastelloy C276 Bolts, Nuts and Washers - Ready Stock, and Delivers the Same to Qatar Within 7 Days. We Completely Trust Mr. Shailesh for our Urgent Requirements and any kind of Fabrications to Fastening Solutions. I enjoyed the Phenomenal Response with No MOQ!

- Mr. Mohammed Shafat,(Qatar)

The only Reason We are Still intact with Mr. Ranka is that he Speaks
the Exact Criteria for our Requirements. Very first order he Supplied us Hastelloy B2 Plates with Cutting Sizes, Stating Well in advance. Later when the Material was shipped we Found it Satisfactory.Since then We have completed 13 orders and continue to work with Mr Ranka.We Trust him and Highly Recommend Mr Ranka for any kind of Our Requirements.

- Ms. Mona Shaife, (Egypt)

Recently Imported Hastelloy C22 plates - 8mm x 1250mm x 3000 Plates from T M Corporation, Material Received with MTC. Mr. Shailesh Has Reduced My Work up to 70%, I just need to Place him the Order and Wait for the Delivery. He Takes Care of the Entire Shipment right upto the material Reached to our Factory. Nearly Zero Error Shipments Every Time.